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Guo H, Ding Y, Fan J, Li Z, Cheng G. Lithium Bromide-Promoted Formal C(sp 3)-H Bond Insertion Reactions of β-Carbonyl Esters with Sulfoxonium Ylides to Synthesize 1,4-Dicarbonyl Compounds. J Org Chem 2024; 89:6974-6986. [PMID: 38703123 DOI: 10.1021/acs.joc.4c00336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2024]
Abstract
A LiBr-promoted formal C(sp3)-H bond insertion reaction between β-carbonyl esters and sulfoxonium ylides is established. This practical reaction has a wide range of substrate scope for both β-carbonyl esters and sulfoxonium ylides to give a variety of 1,4-dicarbonyl compounds with 43-94% yields. The reaction features transition-metal-free reaction conditions and exclusive C-alkylation chemselectivity. The use of bench-stable sulfoxonium ylides overcomes previous methods that require transition metal as catalysts and unstable diazo compounds or toxic haloketones as alkylation reagents.
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Affiliation(s)
- Hailin Guo
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Yuhao Ding
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Jingwen Fan
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Zhiyong Li
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Guolin Cheng
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China
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Zhou X, Jiang J, Zhang M, Wu Q, Zhu K, Shi D, Hou S, Zhao J, Li P. Dioxane promoted photochemical O-alkylation of 1,3-dicarbonyl compounds beyond carbene insertion into C-H and C-C bonds. Chem Commun (Camb) 2024; 60:4330-4333. [PMID: 38545739 DOI: 10.1039/d4cc00778f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
A photochemical synthesis of enol ethers and furan-3(2H)-ones from 1,3-dicarbonyl compounds and aryl diazoacetates has been developed. Significantly, 1,4-dioxane promoted O-alkylation of various 1,3-dicarbonyl compounds beyond previous carbene insertion into C-H and C-C bonds has been disclosed.
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Affiliation(s)
- Xinlong Zhou
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, P. R. China.
| | - Jingjing Jiang
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, P. R. China.
| | - Min Zhang
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, P. R. China.
| | - Qingqing Wu
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, P. R. China.
| | - Keyong Zhu
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, P. R. China.
| | - Dongjie Shi
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, P. R. China.
| | - Sensen Hou
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, P. R. China.
| | - Jingjing Zhao
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, P. R. China.
| | - Pan Li
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, P. R. China.
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He Y, Huang Z, Wu K, Ma J, Zhou YG, Yu Z. Recent advances in transition-metal-catalyzed carbene insertion to C-H bonds. Chem Soc Rev 2022; 51:2759-2852. [PMID: 35297455 DOI: 10.1039/d1cs00895a] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
C-H functionalization has been emerging as a powerful method to establish carbon-carbon and carbon-heteroatom bonds. Many efforts have been devoted to transition-metal-catalyzed direct transformations of C-H bonds. Metal carbenes generated in situ from transition-metal compounds and diazo or its equivalents are usually applied as the transient reactive intermediates to furnish a catalytic cycle for new C-C and C-X bond formation. Using this strategy compounds from unactivated simple alkanes to complex molecules can be further functionalized or transformed to multi-functionalized compounds. In this area, transition-metal-catalyzed carbene insertion to C-H bonds has been paid continuous attention. Diverse catalyst design strategies, synthetic methods, and potential applications have been developed. This critical review will summarize the advance in transition-metal-catalyzed carbene insertion to C-H bonds dated up to July 2021, by the categories of C-H bonds from aliphatic C(sp3)-H, aryl (aromatic) C(sp2)-H, heteroaryl (heteroaromatic) C(sp2)-H bonds, alkenyl C(sp2)-H, and alkynyl C(sp)-H, as well as asymmetric carbene insertion to C-H bonds, and more coverage will be given to the recent work. Due to the rapid development of the C-H functionalization area, future directions in this topic are also discussed. This review will give the authors an overview of carbene insertion chemistry in C-H functionalization with focus on the catalytic systems and synthetic applications in C-C bond formation.
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Affiliation(s)
- Yuan He
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China. .,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zilong Huang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China. .,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Kaikai Wu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China.
| | - Juan Ma
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China. .,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yong-Gui Zhou
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China.
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China. .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, P. R. China.,Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing 100190, P. R. China
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Gallo RDC, Duarte M, da Silva AF, Okada CY, Deflon VM, Jurberg ID. A Selective C-C Bond Cleavage Strategy Promoted by Visible Light. Org Lett 2021; 23:8916-8920. [PMID: 34730986 DOI: 10.1021/acs.orglett.1c03406] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new visible-light-promoted reaction between aryldiazoacetates and 1,3-diketones allows good yields and selectivities for C-C bond insertions, leading to the corresponding 1,4-dicarbonyl compounds. This transformation is straightforward and highly practical. It tolerates air and moisture and does not require the use of any metals. Mechanistic investigations support the involvement of a key cyclopropanol intermediate derived from an intramolecular rearrangement.
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Affiliation(s)
- Rafael D C Gallo
- State University of Campinas, Institute of Chemistry, Rua Monteiro Lobato 270, 13083-862 Campinas, São Paulo, Brazil
| | - Marcelo Duarte
- State University of Campinas, Institute of Chemistry, Rua Monteiro Lobato 270, 13083-862 Campinas, São Paulo, Brazil
| | - Amanda F da Silva
- State University of Campinas, Institute of Chemistry, Rua Monteiro Lobato 270, 13083-862 Campinas, São Paulo, Brazil
| | - Celso Y Okada
- State University of Campinas, Institute of Chemistry, Rua Monteiro Lobato 270, 13083-862 Campinas, São Paulo, Brazil
| | - Victor M Deflon
- University of São Paulo, Institute of Chemistry of São Carlos, Av. Trabalhador São-Carlense 400, 13566-590 São Carlos, São Paulo, Brazil
| | - Igor D Jurberg
- State University of Campinas, Institute of Chemistry, Rua Monteiro Lobato 270, 13083-862 Campinas, São Paulo, Brazil
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Wen S, Tian Q, Chen Y, Zhang Y, Cheng G. Annulation of CF 3-Imidoyl Sulfoxonium Ylides with 1,3-Dicarbonyl Compounds: Access to 1,2,3-Trisubstituted 5-Trifluoromethylpyrroles. Org Lett 2021; 23:7407-7411. [PMID: 34543038 DOI: 10.1021/acs.orglett.1c02598] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A lithium-bromide-promoted nucleophilic substitution/annulation cascade reaction between CF3-imidoyl sulfoxonium ylides and 1,3-dicarbonyl compounds has been established, and the corresponding 1,2,3-trisubstituted 5-trifluoromethylpyrroles have been obtained in 27-78% yield. This reaction features a broad substrate scope and generates dimethyl sulfoxide and H2O as byproducts.
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Affiliation(s)
- Si Wen
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen 361021, China
| | - Qingyu Tian
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen 361021, China
| | - Yanhui Chen
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen 361021, China
| | - Yuqing Zhang
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen 361021, China
| | - Guolin Cheng
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen 361021, China
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